Raptor: Call of The Shadows is a vertical-scroller shoot 'em up developed by Cygnus Studios, published by Apogee Software in 1994.
It was originally published for DOS, but has since been ported to Windows, iOS, Linux, and Mac OS. The game won Power Play's Best Shareware game of 1994. The Shareware version was released for free, at Mountain King Studios (formerly Cygnus Studios) homepage.
The game is a top-down scrolling shooter. You play a mercenary, flying the advanced ship Raptor. You are sent on missions to destroy the enemies of MegaCorps. The game is broken up into three sectors, “Bravo Sector”, “Tango Sector”, and “Outer Regions”. Each of these sectors has nine submissions or “waves”, giving us a total of 27 missions. Between each level you can save your game and upgrade your ship.